Results 251 to 260 of about 1,180,561 (320)
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Impulse Efficient Optimum Impedance Grounding Electrode Configuration for Lightning Transients

IEEE transactions on electromagnetic compatibility (Print), 2023
As the simple grounding electrodes alone may not provide the required low impedance beyond the effective length, a new electrode configuration of optimum impedance is proposed for lightning transients.
Senthil Kumar A   +2 more
semanticscholar   +1 more source

Fault Location Algorithm Based on Characteristic- Harmonic Measured Impedance for HVdc Grounding Electrode Lines

IEEE Transactions on Instrumentation and Measurement, 2020
It is still a significant challenge to accurately locate faults of grounding electrode lines in high-voltage direct current (HVdc) transmission systems, especially high resistance faults and remote faults. In this article, a novel fault location approach
Sheng Lin, Lei Liu, Peiyao Sun
exaly   +2 more sources

Measurement and Safety Criteria of Step Voltage of High Voltage Direct Current Grounding Electrode

IEEE Transactions on Power Delivery, 2021
Grounding electrode is an indispensable part in HVDC transmission projects. During its design and safety evaluation, step voltage is a crucial aspect. By reviewing and sorting out the present standards involving step voltage measurement and its safety ...
Hailiang Lu   +10 more
semanticscholar   +1 more source

The effect of soil ionization on transient grounding electrode resistance in non-homogeneous soil conditions

open access: yesInternational Transactions on Electrical Energy Systems, 2016
The soil ionization phenomenon effectively reduces the grounding electrode resistance. The existing methods to determine the soil ionization effect on the transient resistance of a grounding electrode are valid only for homogeneous soils.
Mehrdad Mokhtari   +1 more
exaly   +1 more source

Sensitivity analysis of the direct time domain analytical solution for transient impedance of the horizontal grounding electrode using ANOVA approach

, 2021
The paper deals with the sensitivity analysis of the transient impedance of the horizontal grounding electrode. Simple and efficient direct time domain analytical solution for the calculation of transient impedance derived from the Generalized ...
S. Šesnić   +4 more
semanticscholar   +1 more source

Temperature characteristics and influence of water-saturated soil resistivity on the HVDC grounding electrode temperature rise

International Journal of Electrical Power and Energy Systems, 2020
The temperature rise process has always been the main factor for the safe operation of high-voltage direct current (HVDC) grounding electrodes, and the soil resistivity is the key parameter affecting the temperature rise of the grounding electrode.
Xishan Wen   +2 more
exaly   +2 more sources

Design Methods of Underwater Grounding Electrode Array by Considering Inter-Electrode Interference for Floating PVs

open access: yesEnergies, 2018
An optimal design method is proposed in this paper to improve the safety and price competitiveness of floating photovoltaic (PV) systems. From the standards for grounding by the International Electrotechnical Commission (IEC) 60364, the Electrical ...
So Park   +2 more
exaly   +2 more sources

Impulse Behavior of Ground Electrodes

IEEE Power Engineering Review, 1983
The state of knowledge on the behavior of ground wire electrodes under impulse currents due to lightning strokes is outlined. The influence of ground characteristics, size of buried conductors, and current wave-shape and intensity are discussed.
Carlo Mazzetti, Giuseppe Veca
openaire   +1 more source

Improved Approach to High-Frequency Current Injection-Based Protection for Grounding Electrode Line in High-Voltage Direct Current System

IEEE transactions on industry applications, 2020
High-frequency current injection-based protection is widely used for fault detection of a grounding electrode line in high-voltage direct current (HVdc) system.
Yufei Teng, Zhenyuan Zhang, Xiaopeng Li
semanticscholar   +1 more source

Performance Testing and Analysis of HVDC Deep-well Grounding Electrode

IEEE International Conference on High Voltage Engineering and Application, 2020
As an important part of the HVDC project, the grounding electrode provides a path for the ground current and unbalanced current. Shallow-buried grounding electrode covers a large area, has few optional pole sites, and is difficult to select, especially ...
Shangmao Hu   +5 more
semanticscholar   +1 more source

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